live.step : feature request

[matcham]

I think there are a couple of things that could be imporved in live.step to facilitate its comunication with the rest of the world :
- AFAIK, there is no way to know when a sequence has been modified with the mouse - this may be very useful (at least for me !) (additionnal outlet ? / mouse/mouseidle messages just like a jit.pwindow ?...)
- mouse over information outlet : step duration is in a different format from 1rst 'step' outlet (1/16 1/8 1/4 1/2 "1" "2" "4" "8" ) .. why ?...
- input : I know that steps can be set with the "step" message.. but I see a couple of cases where I would definitly prefer giving it seperated lists for pitches, velocity, durations, ...
for ex : let's say I want to set the steps pitches from an external editor / generator ; as actually the only way to set a step is sending a list of each step with all pitch/velocity/duration/... values, I would need first to ask live.step to dump it's content, memorize all the steps values somewhere (in a coll...) and then build all the "step" messages from that...
..not very convenient..

what do you think ?
any chance to see this already very useful object evolve a bit in a near future ?

thanks in advance

MathieU

[emmanuel_2]

I think there are a couple of things that could be imporved in live.step to facilitate its comunication with the rest of the world :
- AFAIK, there is no way to know when a sequence has been modified with the mouse - this may be very useful (at least for me !) (additionnal outlet ? / mouse/mouseidle messages just like a jit.pwindow ?...)

In the next version, a changed message will be sent to the dumpout outlet, followed by an integer so you can track wether the changed occurred in the notes, loop, or ruler.

- mouse over information outlet : step duration is in a different format from 1rst 'step' outlet (1/16 1/8 1/4 1/2 "1" "2" "4" "8" ) .. why ?...

On second thought... in the next version, live.step will output ticks instead of the ratios (which were in fact wrong as soon as you would change the interval). Thanks for spotting this.

- input : I know that steps can be set with the "step" message.. but I see a couple of cases where I would definitly prefer giving it seperated lists for pitches, velocity, durations, ...
for ex : let's say I want to set the steps pitches from an external editor / generator ; as actually the only way to set a step is sending a list of each step with all pitch/velocity/duration/... values, I would need first to ask live.step to dump it's content, memorize all the steps values somewhere (in a coll...) and then build all the "step" messages from that...
..not very convenient..

I'll look into it.

[peboer]

+1 on mathieu's suggestions, and...

There doesn't seem to be a way to set the values of Extra1 and Extra2 without using the mouse? It would be great if it was part of the "step" message.
The mouse over list is a variable length list that depends on the settings of the inspector. This makes it less convenient to make a "universal list processor" for that data that would work on *any live.step implementation. All your "pack" and "unpack" objects will be thrown off, as will any zl nths or zl slices, depending on if there's an Extra1 or Duration reported. Why not just zero out (or,better, -1) the data if it's not reported?
Finally, it might be useful to link a coll to live.step, similar to cellblock. That way, all the nifty coll data processor patches that I'm sure people have dreamt up for previous work in step sequencers could carry over. There could be a "collname" attribute that would link the sequence data to a named coll. Making a [coll myseq.1] object, with a [live.step @collname myseq] would give you a coll that had sequence 1's basic step data:
1, 74 78 240 100 -1;
2, 75 83 480 100 -1;
etc.

Peter

[peboer]

ah, and another thought...
A property for step "muting". Of course, you could simply set a velocity to 0, but this doesn't provide much in the way of UI feedback, or a convenient way to unmute back to the original velocity....

[peboer]

Here's a patch that shows some basic work I've been doing with live.step.
Some things of note that others might find useful:
- gathers dump data into a coll for manipulation and data discovery elsewhere in patch
- per-step mutes, with scripting to adapt for # of steps
- per-step skip rules (an idea I copied from Robert's presentation at the expo74)
- zoom and expand views, based on highest/lowest notes
- "warped" timing using signals (i.e., time between steps is non-linear).
- interactive assigning of notes to steps.

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-----------end_max5_patcher-----------
</code></pre>

[peboer]

Hi. It's me. Again.
I can't find a way to save the number of steps in a live.step. It always opens with 16 steps. It would be great if it was an attribute, rather than just a message.

Peter.

[emmanuel_2]

Hi. It's me. Again.
I can't find a way to save the number of steps in a live.step. It always opens with 16 steps. It would be great if it was an attribute, rather than just a message.

It can't really be an attribute, because we would have to have as many attributes as the number of sequence, which wouldn't really help. live.step (nor live.grid for that matter) stores its values within the patcher/device you need to use the initial_enable and initial attributes for that (pattr will also work, but I would recommend that for Max only utilisation). So when you are happy with the values of your live.step:
- open its inspector
- check the "Initial Enable" attribute
-> this will copy the current values of live.step into the Initial attribute
- save the patcher

[peboer]

ah, ok, that makes sense. I looked at the Initial Enable things, but my initial impression was that it was just storing the note values. I'll look more closely at that.
thanks

[cbit]

@peboer

Your patch looks like it could be useful for me (im interested in recording into live.step) Would you mind pasting the code for your gateonce abstraction too?

[peboer]

hi,
it's in the source package:
http://lividserver.com/dl/ohm/LividStep_m4l.zip

but here it is anyway:
<pre><code>
----------begin_max5_patcher----------
436.3ocyU9sSCBCEF+Z3onodKZZ4+5c9bXVLEnNqAZIiRb5xd2sTfMltYJLk
vMkzSObNe+9ZKry1BlH1RqffG.OArr1YaYoC0DvpatErfrMMmToSCJpk4TIz
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zilOEEt3Tj+hSQdFnnnYUQwKNE4ZfhBuBEolr29Kg3nwWB
-----------end_max5_patcher-----------
</code></pre>

[cbit]

Thanks very much!

[sublimelobc]

Is it possible to activate "automate and stored" in the visibility parameter somehow? It doesn't make sense that the note slider on the sequencer wouldn't be controllable by a midi slider, I'm guessing I'm missing something obvious here?

If live.step were midi cc and note controllable from a midi device it would give it all the best functionality of something like numerology, thesys or some of the reaktor sequencers. Being able to move the sliders with a mouse for sequencing can't possibly be the only way to do it....Please tell me I'm missing something obvious!

[peboer]

Is it possible to activate "automate and stored" in the visibility parameter somehow?

...The idea being that you could control the "sliders" in live.step with physical knobs or sliders? Maybe. I haven't tried, and probably won't get to for a few days. However, I encourage you to try it!

If live.step were midi cc and note controllable from a midi device

It is! LividStep is designed to work with our (Livid) Ohm64 and block midi controllers.
Here's how you add notes to steps to edit sequences on the fly:
http://wiki.lividinstruments.com/wiki/L ... Track_Mode
Using a cc to edits steps is an interesting idea, but, even with a long throw, the chances of landing on exactly the note you want seems iffy. It seems better to select from a table, then input that note.
For pitches, the message into live.step to alter a set of pitches for a sequence "1" is:

Code: Select all

pitch 1 62 66 68 70 72 72 72 69 64 60 60 64 68 72 72 72

So the moral is, with midiin or ctlin or notein and "pack" or "pak" you can do whatever you want to the pitches using messages to live.step.
Look at

Code: Select all

p "Filling and dumping data"

in the live.step help file